Micro Control MCS-BMS-GATEWAY Průvodce řešením problémů Strana 39
- Strana / 162
- Tabulka s obsahem
- KNIHY
Hodnocené. / 5. Na základě hodnocení zákazníků
MAGNUM VERSION 8 MANUAL REVISION 3.1
39
Compressor Speed Control
7.7.4.
Compressor speed is controlled by the associated Analog Output. The speed will only be changed after the
vanes are either completely opened (speed will be increased) or closed (speed will be decreased).
Compressor Vane Control
7.7.5.
If more capacity is needed the vanes will be opened by pulsing the Open Vane Relay Output (refer to UNIT
LOADNG-VANE state). If less capacity is needed the vanes will be closed by pulsing the Close Vane Relay
Output (refer to UNIT UNLDNG-VANE state). Vane positioning is based upon the Vane Position sensor if
specified. If no Vane Position sensor is used, then the compressor amps are used to determine vane
positioning.
Trane Purifier Purge System Interface
7.7.6.
Since many centrifugal compressors operate in a vacuum, there is an opportunity for contaminates to get into
the system from small leaks or minor servicing errors. These contaminates are classified as non-condensable
requiring a method of disposal, known as purging. Setpoint #163 “Purge Target” must be active for the system
to check for purge cycles.
(Refer to section 13 Setpoints #163, #164, and #165)
7.7.6.1. Purge Interface Setup
Under the Circuit Base screen, scroll down to the “Purge Relays and Sensors” section and enter the
requested information.
Purge Enable RO – This relay will be turned ON when a purge cycle is active, else it will be off.
Purge Solenoid RO – This relay will be turned ON once the Purge Exhaust Pump has been on for 1 second.
Purge Exhaust Pump RO - This relay will be turned ON when a purge cycle is active, else it will be off.
Purge Mode Switch SI – This input’s type must be MODE SEL SW. This is an external three-way switch that can be
set to:
OFF - in this setting the purge system will not function, the purge state will be SWITCHED OFF.
MANON - in this setting the purge state will be either M-PRG OFF if the system is not purging or M-PRG
RUNNING if a purge cycle is active.
AUTO - in this setting the purge state will be either A-PRG OFF if the system is not purging or A-PRG
RUNNING if a purge cycle is active.
- HVAC and CENT V8 Software 1
- The DB Commitment: 2
- 1. Table of Contents 2
- OMPRESSOR 3
- 2. Revision Page 8
- 3.6. MCS Ethernet Port 11
- 3.3. About this Manual 11
- 3.4. About the Magnum 11
- 3.5. MCS 485 Network 11
- 4. Magnum Display Summary 15
- 5. Authorization Function 21
- 6. Magnum Control States 22
- 7. Standard Control Options 32
- 7.5. Compressor Types 34
- General Information 35
- Circuit Base setup 36
- Typical Relay Output Setup 38
- 7.10. Custom Rotation 43
- 7.15. Hot Gas Bypass 45
- 7.16. Chilled Water Reset 45
- 7.19. Oil Cooler Option 46
- 7.22. On/Off Switches 46
- 7.36. Operating Schedules 51
- Output Control 53
- Temperature) 58
- EXV Related Setpoints 63
- EXV Control States 63
- Tandem EXV Setup 64
- OUT48.1F 70
- IN45.3F 70
- KW Sensors 71
- Tonnage Sensors 71
- Configuring KW and Tonnage 72
- PG 74
- 7.75. Boiler/Pump Control 87
- Pump States 92
- Boiler States 92
- MCS-Config Setup 94
- CLLC States 97
- CLLC Valve States 97
- CLLC Control Logic 99
- 7.81. User Logic 105
- Operators 106
- User Sensor Input 107
- User Relay Output 108
- User Analog Output 109
- System Generated Alarms 111
- User Initiated Alarms 111
- 8.2. Magnum System Alarms 112
- 8.3. Setpoint safety alarms 112
- 9.1. Magnum Keypad Display 117
- 9.3. MCS-SI16-AO4 119
- 9.4. MCS-RO10 120
- 11.1. Sensor Input Points 123
- 11.2. Relay Output Points 124
- 11.3. Analog Output Points 124
- 11.4. Setpoints 125
- 11.6. Other Points 126
- Johnson N2 133
- 11.11.4 133
- 12. Relay Output Sequences 134
- Staging sequence 138
- 13. Magnum V8 Setpoints 140
- ALARM 141
- Low suction pressure 151
- High discharge pressure 151
- High amperage 151
- Discharge temperature 157
- Low oil seal temperature 157
- Low/high ambient cutoffs 157
- However, the EXV will 159
- EXVLevelTarget 161
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